公开(公告)号：US20180257434A1

公开(公告)日：2018-09-13

申请号：US15757998

申请日：2016-09-07

Applicant: BRIDGESTONE CORPORATION ,  SYNVINA C.V.

Inventor： Yuji IKEDA ,  Kenichi SUGIMOTO ,  Hajime NAKAJIMA

IPC: B60C9/00 ,  D01D5/16 ,  D01F6/62 ,  D02G3/48

CPC classification number: B60C9/0007 ,  B60C9/00 ,  D01D5/16 ,  D01F6/62 ,  D02G3/48

Abstract: Disclosed is a PEF fiber for tire which includes a polyethylene-2,5-furandicarboxylate (PEF) raw yarn, wherein the PEF raw yarn is obtained by continuously drawing, without recovering, an undrawn yarn obtained by melt-spinning of a PEF-containing resin composition, and wherein the PEF raw yarn has a storage modulus of 1,300 MPa or more.

公开(公告)号：US20180339553A1

公开(公告)日：2018-11-29

申请号：US15757871

申请日：2016-09-07

Applicant: BRIDGESTONE CORPORATION ,  SYNVINA C.V.

Inventor： Yuji IKEDA ,  Kenichi SUGIMOTO ,  Matheus Adrianus DAM

IPC: B60C1/00

Abstract: Disclosed are a tire fiber having high adhesion to other members, a rubber/fiber composite having improved adhesion between rubber and fiber, and a tire having high hydraulic durability. The tire fiber comprises a polyethylene-2,5-furandicarboxylate (PEF) raw yarn, wherein the PEF raw yarn comprises as a raw material PEF having a terminal carboxylic acid amount of 1 to 100 mmol/kg.

公开(公告)号：US20240344242A1

公开(公告)日：2024-10-17

申请号：US18294751

申请日：2022-06-30

Applicant: BRIDGESTONE CORPORATION

Inventor： Masahiro FUJIE ,  Kenichi SUGIMOTO

IPC: D01F6/62 ,  B60C9/00 ,  B65G15/34 ,  C08G63/19 ,  C08J11/10 ,  F16L11/02

CPC classification number: D01F6/62 ,  C08G63/19 ,  C08J11/10 ,  B60C9/0042 ,  B65G15/34 ,  C08J2367/03 ,  D10B2505/00 ,  D10B2505/022 ,  F16L11/02

Abstract: Provided is a chemically-recycled PET fiber with reduced degradation and superior strength and durability, and rubber-fiber composite products, such as tires, using the chemically-recycled PET fiber. The chemically-recycled PET fiber is made by polymerizing a raw material containing at least one of a monomer and an intermediate that are obtained by depolymerization of a PET product, the monomer including terephthalic acid (TPA) and/or dimethyl terephthalate (DMT) and the intermediate including bis(2-hydroxyethyl) terephthalate (BHET). The chemically-recycled PET fiber has a carboxyl end group (CEG) concentration of 15 eq/ton or less and a degree of crystallinity of 40% or more.

公开(公告)号：US20180258558A1

公开(公告)日：2018-09-13

申请号：US15757556

申请日：2016-09-07

Applicant: BRIDGESTONE CORPORATION ,  SYNVINA C.V.

Inventor： Yuji IKEDA ,  Kenichi SUGIMOTO ,  Hajime NAKAJIMA

IPC: D01F6/62 ,  D01D5/08 ,  D02G3/48 ,  D02J1/22 ,  B60C9/00

CPC classification number: D01F6/62 ,  B60C9/0042 ,  D01D5/08 ,  D01D5/098 ,  D02G3/48 ,  D02J1/225 ,  D07B2201/2009 ,  D10B2331/042 ,  D10B2401/063 ,  D10B2505/02

Abstract: Disclosed is a method for producing a polyethylene-2,5-furandicarboxylate (PEF) raw yarn including a spinning/drawing process wherein an undrawn yarn, obtained by melt-spinning of a PEF-containing resin composition, is continuously drawn into a PEF raw yarn without being recovered and the PEF raw yarn is taken up, wherein the ratio of a rate (T) of taking up the PEF raw yarn to a rate (E) of extrusion of the resin composition into filaments during the melt-spinning (T/E) is 700 to 2,000.

公开(公告)号：US20180244109A1

公开(公告)日：2018-08-30

申请号：US15758050

申请日：2016-09-07

Applicant: BRIDGESTONE CORPORATION ,  Furanix Technologies B.V.

Inventor： Yuji IKEDA ,  Kenichi SUGIMOTO ,  Hajime NAKAJIMA ,  Jesper Gabriel VAN BERKEL

IPC: B60C9/00 ,  D02J1/22 ,  D02G3/48 ,  D02G3/02 ,  D01F6/62 ,  B60C1/00

CPC classification number: B60C9/0042 ,  B60C1/0041 ,  B60C2009/0092 ,  B60C2009/0425 ,  B60C2009/0466 ,  B60C2009/0475 ,  D01D5/098 ,  D01D5/16 ,  D01F6/62 ,  D02G3/02 ,  D02G3/48 ,  D02J1/22 ,  D10B2331/04 ,  D10B2505/022

Abstract: Disclosed is a method for producing a polyethylene-2,5-furandicarboxylate (PEF) raw yarn which includes a drawing step wherein an undrawn yarn, obtained by melt-spinning of a PEF-containing resin composition, is drawn into a PEF raw yarn, wherein a draw ratio in the drawing step is greater than 6.0 times.

公开(公告)号：US20170151835A1

公开(公告)日：2017-06-01

申请号：US15316233

申请日：2015-06-04

Applicant: BRIDGESTONE CORPORATION

Inventor： Kenichi SUGIMOTO

IPC: B60C9/00 ,  D06M15/693 ,  D02G3/48 ,  D01F6/60

CPC classification number: B60C9/0042 ,  B60C9/00 ,  B60C2009/0078 ,  B60C2009/0085 ,  D01D5/06 ,  D01F6/60 ,  D02G3/48 ,  D06M15/693 ,  D10B2331/02 ,  D10B2505/022

Abstract: Provided is a tire having improved strength through use of polyamide 4 fiber. The tire contains a fiber-rubber composite including polyamide 4 fiber that contains polyamide 4.

公开(公告)号：US20160168757A1

公开(公告)日：2016-06-16

申请号：US14892246

申请日：2014-05-21

Applicant: BRIDGESTONE CORPORATION

Inventor： Kenichi SUGIMOTO ,  Mitsuharu KOIDE

IPC: D01F2/02 ,  C08L21/00 ,  D01D5/06 ,  B29C47/88 ,  D01D5/04 ,  C08L1/02 ,  B29C47/00

CPC classification number: D01F2/02 ,  B29C47/0014 ,  B29C47/8895 ,  B29K2005/00 ,  B29L2031/731 ,  B60C9/0042 ,  C08L1/02 ,  C08L21/00 ,  C08L2205/16 ,  D01D5/04 ,  D01D5/06 ,  D01F9/00

Abstract: A process for producing purified polysaccharide fiber of the present invention includes bringing a polysaccharide solution, which is obtained by dissolving a polysaccharide raw material in a liquid containing an ionic liquid, into contact with a solidification liquid containing an ionic liquid, and performing dry-wet spinning on polysaccharide, in which the concentration of the ionic liquid in the solidification liquid is 0.4% by weight to 70% by weight, and a distance D from a site where the polysaccharide solution is extruded in the form of fiber to a site where the extruded polysaccharide solution comes into contact with the solidification liquid is 50 mm to 120 mm.

Abstract translation: 本发明的纯化多糖纤维的制造方法包括将多糖原料溶解在含有离子性液体的液体中而得到的多糖溶液与含有离子性液体的固化液接触，进行干湿 纺丝在多糖上，其中固化液体中的离子液体的浓度为0.4重量％至70重量％，并且将多糖溶液以纤维的形式挤出的部位的距离D与 挤出多糖溶液与固化液接触为50mm至120mm。